Authorities in south Russia's Stavropol Territory have declared a day of mourning on May 28 for victims of a deadly terrorist attack, the deputy head of the regional government said on Thursday.
The bomb, equivalent to 400 grams of TNT, killed at least 7 people and injured more than 40. Three people are in a critical condition, local health officials said.
Entertainment programs scheduled for Friday will be dropped from TV and radio schedules and concerts will be postponed across the region. Flags will also flyi at half-mast.
The Stavropol Territory is the largest region in the North Caucasus Federal District, and hosts its administration, but has remained largely free of the violence in the neighboring republics of Chechnya, Ingushetia and Dagestan.
Stavropol Territory Governor Valery Gayevsky said the terrorist attack was aimed at shattering national unity.
No group has yet claimed responsibility for the blast.
STAVROPOL, May 27 (RIA Novosti)

